diff --git a/src/ScmBackup/ScmBackup.csproj b/src/ScmBackup/ScmBackup.csproj
index 9d00601..211ae24 100644
--- a/src/ScmBackup/ScmBackup.csproj
+++ b/src/ScmBackup/ScmBackup.csproj
@@ -29,7 +29,7 @@
 
   <ItemGroup>
     <PackageReference Include="AWSSDK.S3" Version="3.7.305.28" />
-    <PackageReference Include="MailKit" Version="4.5.0" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.5" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="NLog" Version="5.2.8" />